Galveston County Medical Examiners on Friday confirmed 16-year-old Kirsten Fritch was stabbed to death.
Equusearch found Fritch's body Thursday in Texas City. It was found in a wooded area near a building just north of the Shenanigans bar located on 34th Street.
Investigators arrested Fritch's boyfriend, 21-year-old Jesse Dobbs, outside of the bar early Wednesday morning. Police say Dobbs is a person of interest in the case.
investigators say the teen had been stabbed multiple times, and the cause of death was sharp force injury caused by the stabbings.
Authorities issued an Amber Alert for Fritch after her mother and younger sister were found dead in their Baytown home.Police found Fritch's younger sister, Breanna Pavlicek, 13, and their mom, Cynthia Morris, 37, dead with gunshot wounds in the family's Baytown house on Tuesday.
Police have not charged Dobbs with the murders. He is currently being held in the Galveston County jail on charges of resisting arrest.
(© 2016 KHOU)